Results 111 to 120 of about 42,518,722 (284)
Clustering Chinese Regional Cultures with Online-gaming Data [PDF]
arXiv, 2013 To identify cluster of societies is not easy in subject to the availability of data. In this study, from the prospective of computational social science, we propose a novel method to cluster Chinese regional cultures. Using millions of geotagged online-gaming data of Chinese internet users playing online card and board games with regional features, 336
arxiv
Comprehensive clinical evaluation of novel 4DCT‐based lung function imaging methods
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose Methods have been developed that apply image processing to 4DCTs to generate 4DCT‐ventilation/perfusion lung imaging. Traditional methods for 4DCT‐ventilation rely on Hounsfield‐Unit (HU) density‐change methods and suffer from poor numerical robustness while not providing 4DCT‐perfusion data.
Ehsan Golkar +6 more
wiley +1 more source
Impact of High PV Penetration on Regional Power Grids [PDF]
arXiv, 2020 Due to the high solar irradiance or energy price, certain regions in the U.S. may reach 100% PV penetration and experience degradation of frequency response greater than the interconnection as a whole. Therefore, in this section, the 100% PV penetration region in each interconnection is simulated to study the local high PV penetration effects.
arxiv
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose To assess the predictive capability of CT radiomics features for early recurrence (ER) of pancreatic ductal adenocarcinoma (PDAC). Methods Postoperative PDAC patients were retrospectively selected, all of whom had undergone preoperative CT imaging and surgery. Both patients with resectable or borderline‐resectable pancreatic cancer met
Xinze Du +7 more
wiley +1 more source
Spatially Constrained Spectral Clustering Algorithms for Region Delineation [PDF]
arXiv, 2019 Regionalization is the task of dividing up a landscape into homogeneous patches with similar properties. Although this task has a wide range of applications, it has two notable challenges. First, it is assumed that the resulting regions are both homogeneous and spatially contiguous.
arxiv
Related Variety, Unrelated Variety and Regional Economic Growth
, 2007 Frenken K., Van Oort F. and Verburg T. (2007) Related variety, unrelated variety and regional economic growth, Regional Studies 41, 685–697. In economic theory, one can distinguish between variety as a source of regional knowledge spillovers, called ...
K. Frenken, F. V. van Oort, T. Verburg
semanticscholar +1 more source
Microglial regional heterogeneity and its role in the brain
Molecular Psychiatry, 2019 Microglia have been recently shown to manifest a very interesting phenotypical heterogeneity across different regions in the mammalian central nervous system (CNS). However, the underlying mechanism and functional meaning of this phenomenon are currently
Yunlong Tan, Yixin Yuan, L. Tian
semanticscholar +1 more source
Entropy region and convolution [PDF]
arXiv, 2013 The entropy region is constructed from vectors of random variables by collecting Shannon entropies of all subvectors. Its shape is studied here by means of polymatroidal constructions, notably by convolution. The closure of the region is decomposed into the direct sum of tight and modular parts, reducing the study to the tight part.
arxiv
Анализ документально-информационного потока по проблемам сибирского краеведения
Библиосфера, 2010 The characteristic of document and information flow on the problems of Siberian regional studies during 1991-2005 is given. The author makes bibliometrical analysis of quantitative changes in document and information flow, its type and aspect and ...
doaj
A Geometric Approach to Confidence Regions and Bands for Functional Parameters [PDF]
arXiv, 2016 Functional data analysis, FDA, is now a well established discipline of statistics, with its core concepts and perspectives in place. Despite this, there are still fundamental statistical questions which have received relatively little attention. One of these is the systematic construction of confidence regions for functional parameters.
arxiv